| a new species of isospora schneider, 1881 (apicomplexa: eimeriidae) from morafka's desert tortoise gopherus morafkai (testudines: testudinidae). | isospora gopheri n. sp. (apicomplexa: eimeriidae) is described from 5 of 28 (18%) morafka's desert tortoise gopherus morafkai murphy, berry, edwards, leviton, lathrop & readle, housed by the phoenix herpetological society, maricopa county, arizona, usa. sporulated oöcysts of this new species were spheroidal to subspheroidal, 20-27 × 19-27 (23.0 × 21.7) µm, with a smooth, bi-layered wall and 1-3 polar granules; an oöcyst residuum was absent. sporocysts were elongate-ovoidal to ellipsoidal, 13-18 ... | 2015 | 26446544 |
| spatial and temporal variation in survival of a rare reptile: a 22-year study of sonoran desert tortoises. | although many species may be vulnerable to changes in climate, forecasting species-level responses can be challenging given the array of physiological, behavioral, and demographic attributes that might be affected. one strategy to improve forecasts is to evaluate how species responded to climatic variation in the past. we used 22 years of capture-recapture data for sonoran desert tortoises (gopherus morafkai) collected from 15 locations across their geographic range in arizona to evaluate how en ... | 2013 | 23011852 |